Lines of action

An ordinary checkerboard (8x8 squares), 12 black and 12 white pieces are needed; in the standard version of the game, as you can see in the image below, the black checkers are placed in two rows along the top and bottom of the board, while the white pieces are placed in two rows at the left and right of the board.The aim of the game is to move own pieces until they are all in one connected group; two pieces are considered to be connected when they are placed in horizantal, vertical or diagonal adjacent squares.